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1,840 Possible Causes for Vitamin B12 Deficiency

  • Vitamin B12 Deficiency

    Vitamin B12 deficiency occurs when the blood levels of vitamin B 12 drop below normal.[] Vitamin B12 deficiency, also known as cobalamin deficiency, is the medical condition of low blood levels of vitamin B12.[] Vitamin B12 deficiency causes haematological, gastrointestinal, psychiatric and neurological diseases.[]

  • Anemia

    Vitamin B12 Deficiency A lack of vitamin B12 can cause anemia because this vitamin is also essential for the formation and growth of red blood cells.[] […] anemia, vitamin B12 deficiency anemia, folic acid deficiency anemia Renal anemia Chronic diseases ( Anemia of Chronic Disease (ACD)) Tumors ( tumor anemia ) Infection Immune[] In contrast, vitamin B12 deficiency is almost always the result of malabsorption[ 49, 57 ].[]

  • Chronic Alcoholism

    Folic acid and vitamins B6 and B12 deficiency may lead to hyperhomocysteinemia, as they participate in its metabolism.[] Chronic alcoholism is often associated with malnutrition and nutritional and vitamin deficiencies, including B12, B1 (thiamin), folate and other B vitamins.[] ., Leber's hereditary optic neuropathy), nutritional deficiencies (e.g., vitamin B9 [folic acid] and vitamin B12 [cobalamin] deficiencies), and toxic conditions (e.g., those[]

  • Autoimmune Gastritis

    Vitamin B12 Deficiency. N Engl J Med 2013; 368:149-160. Scarpa E, Candiotto L, Sartori R, et al. Undetected vitamin B12 deficiency due to false normal assay results.[] This usually precedes vitamin B12 deficiency and is found mainly in young women.[] This usually precedes vitamin B12 deficiency and is found mainly in young women… CONTINUE READING From This Paper Figures, tables, and topics from this paper.[]

  • Jejunal Diverticulosis

    Abstract Patients with jejunal diverticula usually are asymptomatic unless bacterial overgrowth within the diverticula is sufficient to cause vitamin B12 deficiency, by direct[] B12 deficiency, possibly due to bacterial overgrowth in the diverticula Clinical images Images hosted on other servers: Jejunal diverticula Back to top[] […] uptake of the vitamin by the bacteria, or malabsorption resulting from bacterial deconjugation of bile salts and impaired lipid digestion.[]

  • Duodenal Diverticulum

    Duodenal diverticulum is a common occurrence but most are asymptomatic. However, in some cases, they can cause mechanical biliary compression. We report the case of a duodenal diverticulum in a 64-year-old woman revealed by severe cholangitis with septic shock and a liver abscess. Associated annular pancreas was[…][]

  • Iron Deficiency

    Vitamin B12-deficiency anemia occurs when you don’t take in enough vitamin B12.[] A total of 48 (47.6%) patients had ID, 10 (9.9%) had a vitamin B12 deficiency, and 13 (12.9%) had a folate deficiency.[] These conditions include iron deficiency, vitamin B12 deficiency, vitamin C deficiency, Vitamin E deficiency, vitamin B6 deficiency, and thyroid disorders, for openers.[]

  • Pernicious Anemia

    BACKGROUND: Vitamin B12 deficiency may result in pernicious anemia (PA). This study evaluated whether all the patients with vitamin B12 deficiency had PA.[] What is vitamin B12 deficiency anemia?[] "Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency: a systematic review of randomized controlled trials".[]

  • Gastritis

    This disease presents typically with vitamin B12 deficiency and pernicious anaemia. The presence of anti-parietal cell antibodies is highly specific for the diagnosis.[] Vitamin B12 deficiency is treated by intermittent injections.[] Deficiency of vitamin B12 eventually leads to a condition called pernicious anemia.[]

  • Malabsorption Syndrome

    Signs of deficiencies may be apparent. There may be: Non-anaemic iron deficiency. Iron-deficiency anaemia. Folate deficiency or vitamin B12 deficiency.[] Frequently used as diagnostic tools are also blood and other laboratory tests, which reveal possible deficiencies in the levels of lactose and vitamin B12.[] […] food in stools Vitamin B12 deficiency Malabsorption can also affect growth and development, and/or lead to certain illnesses.[]

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